lib: add parent to ERR_UNKNOWN_FILE_EXTENSION

- default_resolve updated to pass parentURL into error
- ERR_UNKNOWN_FILE_EXTENSION updated to include parentURL
- test added to check for import message in error

PR-URL: https://github.com/nodejs/node/pull/30728
Fixes: https://github.com/nodejs/node/issues/30721
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

2 files changed, 7 insertions, 2 deletions

diff --git a/lib/internal/errors.js b/lib/internal/errors.js
index 3db047cd32..8e6962e256 100644
--- a/lib/internal/errors.js
+++ b/lib/internal/errors.js
@@ -1228,7 +1228,9 @@ E('ERR_UNHANDLED_ERROR',
 E('ERR_UNKNOWN_BUILTIN_MODULE', 'No such built-in module: %s', Error);
 E('ERR_UNKNOWN_CREDENTIAL', '%s identifier does not exist: %s', Error);
 E('ERR_UNKNOWN_ENCODING', 'Unknown encoding: %s', TypeError);
-E('ERR_UNKNOWN_FILE_EXTENSION', 'Unknown file extension: %s', TypeError);
+E('ERR_UNKNOWN_FILE_EXTENSION',
+  'Unknown file extension "%s" for %s imported from %s',
+  TypeError);
 E('ERR_UNKNOWN_MODULE_FORMAT', 'Unknown module format: %s', RangeError);
 E('ERR_UNKNOWN_SIGNAL', 'Unknown signal: %s', TypeError);
 
diff --git a/lib/internal/modules/esm/default_resolve.js b/lib/internal/modules/esm/default_resolve.js
index c9ef3883c4..d238930164 100644
--- a/lib/internal/modules/esm/default_resolve.js
+++ b/lib/internal/modules/esm/default_resolve.js
@@ -116,7 +116,10 @@ function resolve(specifier, parentURL) {
         'ExperimentalWarning');
       format = legacyExtensionFormatMap[ext];
     } else {
-      throw new ERR_UNKNOWN_FILE_EXTENSION(fileURLToPath(url));
+      throw new ERR_UNKNOWN_FILE_EXTENSION(
+        ext,
+        fileURLToPath(url),
+        fileURLToPath(parentURL));
     }
   }
   return { url: `${url}`, format };